Hacking Hammer

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Rowhammer Biggest Hack Exploit and Rowhammer Attack

Rowhammer is a data theft technique that has fascinated and concerned the cybersecurity community for many years. It combines digital and physical hacking in a way that is both fascinating and unaccounted for. Researchers have continuously improved the attack and expanded the targets it can be used against since its original discovery. Researchers have greatly increased the threat by including vital devices such as routers and servers, even though they contain components that were previously thought to be immune.

Rowhammer attacks have been known to be a brutal method for hacking data. These attacks involve strategically implementing a program repeatedly on ” rows” of transistors within a computer’s storage chip. This is where hammer the row until electricity leaks into the next row. The leakage may cause the row in question to “flip” to one position, modifying data in memory. A Rowhammer expert will be able to exploit these data changes to gain greater system access.

Second Remote Rowhammer Exploit

Researchers from the Vrije Universiteit Amsterdam and the University of Cyprus discovered recently that malicious packets sent over LAN can trigger the Rowhammer Attack on systems equipped with Remote Direct Memory Access (RDMA ), which is commonly used in data centers or clouds.

RDMA-enabled card network cards allow computers to exchange data in a network (with both read access and write access) in the main memory. However, if the card is misused to access the host’s main memory quickly, bit flips can occur on Dynamic random access memory (DRAM). Rowhammer exploits an inherent weakness in computer hardware and no software patch will fix it. Researchers believe that Rowhammer is a real threat and could cause serious damage.

Researchers now know of a second remote Rowhammer attack. This new technique, called Throwhammer is capable of allowing attackers Rowhammer attacks on targeted systems. All they have to do is send specially-crafted packets over the local area network to the vulnerable cards. This means that Throwhammer exploited Rowhammer via RDMA channels.

Throwhammer attacks are only possible with a network speed of at least 10Gbps. This is because the bit flip triggers hundreds of thousands of memory access to specific DRAM locations in a matter of seconds.

Prevention of data hacking on websites

To avoid a data hack situation, think like a hacker. What kind of data would you seek if you were a hacker? What would you use to find it? There are many ways to hack databases. Most hackers will try to exploit a database vulnerability or crack the root password. You can hack data if you understand the basics of databases and are familiar with SQL statements.

Below are the key reasons behind website hacking and steps to avoid them.

  • Maintain software up-to-date older software might not have the latest patches, making it more vulnerable to hackers. Your web server software, CMS, plugins, CMS and any other critical software that is related to your website should all be set up for automatic updates. If this option is not available you can manually update the software.
  • Using common passwords is possible to hack websites by compromising account information. This is the most common error. It is important to create a strong password and not use the same password on different websites. Use security tools such as two-factor authentication.
  • Data management errorsLeaked refers to website data that has been improperly uploaded or mishandled. Hacking can be caused by data leakage. You can ensure that your employees only have the necessary data. Use URL removal tools to make sure Google doesn’t index sensitive URLs.
  • Make sure you have the latest WordPress themes and plugins. It is your responsibility to make sure that all plugins and themes are updated on WordPress. Hackers can gain access to your website by using outdated plugins, themes, or WordPress versions. Deactivated plugins and themes can make your system vulnerable. You should delete any plugins or themes that you no longer use for your website. These plugins and themes should not be disabled. Instead, delete their files from your server. You should also make sure you carefully review the free plugins or themes before installing them. These free versions can be easily infected by malicious code.
  • Security policy loopholesCertain security policies, such as allowing admin access, allowing users to create weak passwords, or not enabling on your site, can have negative consequences. To protect your website, you should always have a clear security policy. Also, you will need to manage user access and privileges properly, analyze logs accurately, and use encrypted data.
  • Phishing on the internet to steal confidential information, hackers use phishing emails and web pages. Phishing attacks can make it appear that one is dealing with a legitimate webmaster. These attacks are designed to steal passwords and other confidential information. Users mustn’t share personal information with anyone they don’t know.